Crawdads, a.k.a. crayfish, crawfish, or mudbugs, are tiny freshwater crustaceans built on the plan of lobsters. In the U.S. they are most associated with the Mississippi River delta, in Louisiana. 90% of the world’s crawdads come from Louisiana, but they are eaten worldwide, with Scandinavians especially fond of them. Not so many people know that California has a delta, but the crawdads know it. We traveled to Isleton in the heart of the Sacramento River Delta to sample a bucket of them.